Free machine readable english dictionary required

Question

I need an English dictionary that provides grammatical information about each word, for e.g. classification into nouns, verbs and so on. This is for semantic analysis. Format can be plain text, csv, xml or whatever.

Answer 1

what you are looking for is a corpus.

Answer 2

There's a public domain English dictionary at Project Gutenberg.

It may be a little out of date.

Answer 3

Perhaps you're looking for http://www.collins.co.uk/Corpus/CorpusSearch.aspx

Answer 4

Try WordNet. I believe it is free for most uses.